列出来自相同 ID 的配置文件 5 次

我做了一个追随者名单。但它列出了来自同一 ID 的配置文件 5 次。如下图所示。我找不到解决方案。你能帮助我吗。我的代码如下...................................................... ..................................................... ..................................................... .....................

关注卡片

class _FollowCardState extends State {
  List followList = []; 

  getdata() async {
    List followers = [];

    final currentUserSnapshot = await FirebaseFirestore.instance
        .collection('users')
        .doc(FirebaseAuth.instance.currentUser!.uid)
        .get();

    
    List followIds =
        List.from(currentUserSnapshot.data()!['following']);
    // loop through all ids and get associated user object by userID/followerID
    for (int i = 0; i < followIds.length; i++) {
      var followId = followIds[i];
      var data = await FirebaseFirestore.instance
          .collection('users')
          .doc(followId)
          .get();

     
      followers.add(data);
    }
    setState(() => followList = followers);
  }

  @override
  void initState() {
    super.initState();
    getdata();
  }

  @override
  Widget build(BuildContext context) {
    
    return SingleChildScrollView(
      physics: NeverScrollableScrollPhysics(),
      child: ListView.builder(
          shrinkWrap: true,
          itemCount: followList.length,
          itemBuilder: (context, index) {
            var followerItem = followList[index];
            print('photoUrl');

            return _buildFollowersCard(followerItem['photoUrl'],
                followerItem['username'], followerItem['uid']);
          }),
    );
  }

  Widget _buildFollowersCard(String photoUrl, String username, String uid) {
    return Container(
      height: 70,
      width: double.infinity,
      color: mobileBackgroundColor,
      child: Card(
        child: Column(children: [
          //Header
          Container(
            height: 40,
            width: double.infinity,
            padding: const EdgeInsets.symmetric(
              vertical: 4,
              horizontal: 16,
            ).copyWith(right: 0),
            child: Row(
              children: [
                CircleAvatar(
                  radius: 16,
                  backgroundImage: NetworkImage(
                    photoUrl,
                  ),
                ),
                Expanded(
                  child: Padding(
                    padding: EdgeInsets.only(left: 8),
                    child: Column(
                      mainAxisSize: MainAxisSize.min,
                      crossAxisAlignment: CrossAxisAlignment.start,
                      children: [
                        TextButton(
                          onPressed: () {
                            Navigator.push(
                                context,
                                MaterialPageRoute(
                                    builder: (context) =>
                                        ProfileScreen(uid: uid)));
                          },
                          child: Text(
                            username,
                            style: TextStyle(
                                fontWeight: FontWeight.bold,
                                color: Colors.white),
                          ),
                        ),
                      ],
                    ),
                  ),
                ),
              ],
            ),
          )
        ]),
      ),
    );
  }
}

Follow\u屏幕

class _FollowScreenState extends State {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        backgroundColor: mobileBackgroundColor,
        centerTitle: true,
        title: Image.asset(
          'Resim/logo.png',
          height: 50,
        ),
      ),
      body: StreamBuilder(
        stream: FirebaseFirestore.instance.collection('users').snapshots(),
        builder: (context,
            AsyncSnapshot<QuerySnapshot<Map<String, dynamic>>> snapshot) {
          if (snapshot.connectionState == ConnectionState.waiting) {
            return const Center(
              child: CircularProgressIndicator(),
            );
          }
          return ListView.builder(
            itemCount: snapshot.data!.docs.length,
            itemBuilder: (context, index) => FollowCard(
              snap: snapshot.data!.docs[index].data(),
            ),
          );
        },
      ),
    );
  }
}